whatsapp-mcp
by lharries · Go
WhatsApp MCP server
Productivity & CommsStaleF6.6k
Slack MCP (official remote)
MCP server by Slack · vendor-hosted · maintained
Productivity & CommsMaintainedGrade AOfficialRemote availableHosted
Official Slack hosted MCP server: search messages and channels, send messages, manage canvases, users, files and lists over Streamable HTTP with OAuth.
Install Slack MCP (official remote)
Choose your AI client and copy the config.
Remote MCP — add to claude_desktop_config.json (or Connectors). Clients without native remote support can use the mcp-remote bridge below. Setup guide
{
"mcpServers": {
"slack": {
"url": "https://mcp.slack.com/mcp"
}
}
}stdio bridge (mcp-remote):
{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.slack.com/mcp"
]
}
}
}Add to ~/.cursor/mcp.json or .cursor/mcp.json, then complete OAuth when prompted. Setup guide
{
"mcpServers": {
"slack": {
"url": "https://mcp.slack.com/mcp"
}
}
}Add to .vscode/mcp.json (HTTP transport). Setup guide
{
"servers": {
"slack": {
"type": "http",
"url": "https://mcp.slack.com/mcp"
}
}
}Cascade → MCP servers → Add custom server. Setup guide
{
"mcpServers": {
"slack": {
"url": "https://mcp.slack.com/mcp"
}
}
}Run in your terminal, then /mcp to authenticate: Setup guide
claude mcp add --transport http slack https://mcp.slack.com/mcpCLI or add to ~/.codex/config.toml. Setup guide
codex mcp add slack --url https://mcp.slack.com/mcp[mcp_servers.slack]
url = "https://mcp.slack.com/mcp"Use the mcp-remote bridge if the client is stdio-only. Setup guide
{
"mcpServers": {
"slack": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.slack.com/mcp"
]
}
}
}ChatGPT web needs a remote HTTPS MCP URL (Plugins → Add custom MCP server). Setup guide
https://mcp.slack.com/mcpVendor-hosted Streamable HTTP endpoint (OAuth on first connect):
https://mcp.slack.com/mcpBefore you install: Remote endpoint taken from the vendor's public MCP documentation. Complete the vendor OAuth flow on first connect. Prefer the Streamable HTTP URL; use mcp-remote only if your client is stdio-only.
Related Productivity & Comms servers
mcp-atlassian
by sooperset · Python
MCP server for Atlassian tools (Confluence, Jira)
Productivity & CommsMaintainedARemote6k
zotero-mcp
by 54yyyu · Python
Zotero MCP: Connects your Zotero research library with Claude and other AI assistants via the Model Context Protocol to discuss papers, get summaries, analyze citations, and more.
Productivity & CommsMaintainedA5.4k
notion-mcp-server
by makenotion · TypeScript
Official Notion MCP Server
Productivity & CommsMaintainedARemote4.7k
mcp-obsidian
by MarkusPfundstein · Python
MCP server that interacts with Obsidian via the Obsidian rest API community plugin
Productivity & CommsMaintainedA4.5k
excel-mcp-server
by haris-musa · Python
Excel MCP server: let AI (Claude, Cursor, Codex) create and edit Excel files with charts, PivotTables, slicers and formulas. No Excel required.
Productivity & CommsMaintainedBRemote4.2k